ADHESIVE PEELABLE FILM Russian patent published in 2011 - IPC B32B7/06 B32B27/08 B32B37/12 B65D65/14 B65D65/40 B65D65/42 C08J9/00 

FIELD: chemistry.

SUBSTANCE: polymeric film consists of a block-copolymeric peelable middle layer and at least one adhesive non-peelable surface layer. The middle layer makes up 95% of the thickness of the film. The surface layer contains a terpolymer of polyethylene/polypropylene/polybutylene and has thickness from approximately 0.1 mcm to approximately 1.5 mcm. An adhesive coating is deposited on the surface layer. The adhesive coating and/or surface layer is hot-sealable. The middle layer has at least one olefin component. The adhesive polymeric film has high adhesion capacity in a wide temperature range and peeling capacity. Bonded packaging is made from the polymeric film which contains a block-copolymeric substrate and adhesive coatings and/or surface layer are obtained on the substrate. The packaging is obtained by wrapping the packed article with the film such that at least one area for overlapping and hot-sealing is obtained.

EFFECT: adhesive region can be opened by manually separating overlapping sections of the film without breaking the film in or around the bonded region.

24 cl, 1 tbl, 1 ex